
Milltek Resonated Cat-Back Exhaust - Audi C6 S6 V10 - Polished Tips - SSXAU621
Ships free in the US
- Shop tested in Dallas
- Free pickup in Dallas
- Installs at our shop
The Milltek Resonated Cat-Back Exhaust System is engineered specifically for the Audi C6 S6 V10 FSI Quattro (2006-2010). This is a direct factory fitment cat-back system that replaces the OEM exhaust from the rear of the secondary catalytic converters back, using original hangers and mounting points.
Constructed from T304L stainless steel with mandrel-bent piping at 2.36" (60mm), the resonated design eliminates drone at cruise while preserving full-throttle character. Hand-finished construction and CNC-formed merge collectors ensure OEM+ fitment without modification. The polished stainless tip completes a factory-correct aesthetic.
Fitment
- Audi C6 S6 V10 FSI Quattro (2006-2010)
- Cat-back only - requires factory secondary cats and GPF (where applicable)
- Direct OEM hanger compatibility
- No suspension or undertray modification required
Technical Specifications
- Material: T304L stainless steel, hand-finished
- Pipe Diameter: 2.36" (60mm) mandrel-bent
- Type: Resonated (OE+ tone, reduced drone)
- Tip: Polished stainless steel
- Installation: Direct fitment, no cutting or welding
Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.
Specifications
- Pipe diameter: 60mm (2.36")
- Fitting time: 2 to 3 hours, including removing the factory system
- E-marked for road use
Fitment
- Audi > S6 > 5.2 V10 C6 FSI quattro > 2006 to 2012
- Free US shipping on orders over $250.
- Free pickup at our Dallas shop, usually ready within 24 hours.
- Unused parts can be returned within 30 days. Tunes, opened electronics, merch and installed parts are final sale.
- Want it installed? Book the install at thegbmotors.com.
Full details are on our shipping and returns page.
More for your build
Shop pickBMW G20 M340i & G22 M440i - Cat-Back Quad with GT-100 Black Tips

Milltek Downpipe and Cat - Audi TT Mk2 2.0 TFSi 2WD - SSXAU348


Milltek Resonated Valved GPF-Back Exhaust - Land Rover Defender 130 V8 - Polished Tips - SSXLR239
